Genius SW-G2.1 3000 User manual

Service Guide Model No : SW-G2.1 3000
SERVICE GUIDE
KYESYSTEMS CORP.
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Service Guide Model No : SW-G2.1 3000
Revision History
Version Date Change
1.0
16 / 11 /201 1 First Release
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Service Guide Model No : SW-G2.1 3000
Table of Contents
Revision History …………………………………………………………………….2
Table of Contents ……………….……………………………………………………3
Getting Started ……………………………………………………………………….4
Conventions Used in this Guide ……………………….…..………………....4
Safety Precautions …….……………………………………………………..4
Chapter 1. How to Handle Defective Returns……………………………………..5
1.1 Speaker no sound
1.2 Power LED no light
1.3 Headphone no sound
1.4 Bass/Volume no function
Chapter 2. Specifications ………………………………………………………….10
Chapter 3. Block Diagram ……………………………………………………….11
Chapter 4. Exploded View …………………………………………………12 & 13
Chapter 5. Part List ………………………………………………………………14
Chapter 6. Schematic Diagram …………………………………………………..15
Chapter 7. Important Notes ………………………………………………………16
7.1 Packing Requirement for Sending the PCB Assembly by Post …..16
7.2 Short of Spare Parts while Repairing a Speaker System …………16
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Service Guide Model No : SW-G2.1 3000
Getting Started
Conventions Used in this Guide
Pay Special Attention : Instructions that are important to remember and
may prevent mistakes .
Caution : Information that, if not followed, may result in damage to the
product .
Safety Precautions
The following precautions should be observed in handling the speaker
Described in this guide :
Place the speakers on a flat, level and stable surface.
Do not place the speakers in environments subject to mist, smoke,
vibration, excessive dust, salty or greasy air, or other corrosive gases
and fumes.
Do not drop or jolt the speakers.
Do not allow anything to drop into the subwoofer case through its
ventilator, as it could result in fatal electric shock or fire .
Place the unit far enough from other equipments for good heat
dissipation .
Disconnect the AC power cord from the AC outlet before performing
any maintenance on the speakers .
Do not perform any maintenance with wet hand .
Prevent foreign substances, such as water, other liquids or chemicals ,
From entering the speakers while performing maintenance procedures
on the speakers .
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Service Guide Model No : SW-G2.1 3000
Chapter 1. How to Handle Defective Returns
Overview
Receiving Defective speakers from
Customers
Function NG
__ __
Analyzing possible malfunction
causes
Function NG Deciding & proceeding the
rectification methods
Function OK
Replace necessary defective parts
Function OK
Return the speakers with proper
repackaging to customers
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Service Guide Model No : SW-G2.1 3000
Problems
Item Problem Description
1.1 Speaker no sound
1.2 Power LED no light
1.3 Headphone no sound
1.4 Bass/Volume no function
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Service Guide Model No : SW-G2.1 3000
Attention
Please follow the numbered sequence marked within parenthesis given in individual Flow
chat, in that this is the best-recommended sequence to rectify the problems.
1.1 One or more channels no sound (Line in/Audio in jack no function)
Problem
Analyze
and
Identify
Cause
Solution
Speaker no sound
Component cold
solder or Short
Circ
uit
Defective
U1,U2,U3,U4
&U5
,
Speaker cable disconnect,
JK_IN_D3.5&
JK1defective or speaker
damaged
Check solder
point on PCBA
Check and
Replace defective
IC
Reconnect speaker cable or
replace defective speaker
driver and component
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Service Guide Model No : SW-G2.1 3000
1.2 Power LED no light
Problem
Analyzer and
Identify the Causes
Solutions
1.3 Headphone no sound
Problem
Analyzer and
Identify the Causes
Solution
Power LED no light
Component cold
solder or Short
Circuit
Defective
D1,T1A,U1,U2,
Q1,TL431 or
F4*8
Power Switch(VR1) or
LED defective
Check solder
point on PCBA
Check and
Replace defective
IC
or Fuse
Replace defective Power
Switch or LED
Headphone no sound
Component cold
solder or Short
Circuit
J4 Phone jack defective
Check solder
point on PCBA
Replace defective J4 Phone
jack
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Service Guide Model No : SW-G2.1 3000
1.4 Bass/Volume no function
Problem
Analyzer and
Identify the Causes
Solution
Bass/Volume no function
Component cold
solder or Short
Circuit
VR1 or VR2 defective
Check solder
point on PCBA
Replace defective
VR1 or
VR2
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Service Guide Model No : SW-G2.1 3000
Chapter 2. Specifications
NO. Description Unit Specifications
1 Out Power at THD 10%(Sub) W
≧ 40
2 Out Power at THD 10%(Sat) W
≧ 15
3 Sensitivity(Sub) mV 130± 30
4 Sensitivity(Sat) mV
600± 60
5 Freq. Response (1KHz -3dB) Hz 23~126
6 Freq. Response (1KHz -3dB) Hz 119~20K
7 Separation dB
≧
≧≧
≧ 40
8 S/N ratio dB
≧
≧≧
≧ 70
9 Hum & Noise (Vol.: max) mV
≦
≦≦
≦ 2
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Service Guide Model No : SW-G2.1 3000
Chapter 3 Block Diagram
Audio in
LCH & RCH
Headphone output
LCH & RCH
Power Sw, Tone &
Volume control
Audio
Amplifier IC
TPA
3123D2
LCH
RCH
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PRE-Amplifier
Line in
LCH & RCH
Mic in
LCH & RCH
Mic out
LCH & RCH PC
SUB

Service Guide Model No : SW-G2.1 3000
Chapter 4. Exploded View
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Service Guide Model No : SW-G2.1 3000
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Service Guide Model No : SW-G2.1 3000
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Service Guide Model No : SW-G2.1 3000
Chapter 5. Part List
No
DESCRIPTION Qty UNIT Part No.
1
TPA3123D2 IC
1 U1,U2
2 JRC4558 SMD SOP8 IC 1 U3,U4,
U5
3 Photocoupler EL817A 1 U2
4 F09-1028009-00 Transformer 1 T1A
5 Bridge Rectifier 1 D1
6 STEREO CABLE 1
VMC700002-00
10
7 RCA CABLE 1
VRC220001-002
0
8 RCA CABLE 1
VRC155007-002
0
9 POWER CORD 2P 1
VPE003012-002
0
10 SPK UNIT 1 FSA511530-362
4
11 SPK UNIT 1
FSB524065-68
0
12 RCA CABLE 1
VRC155007-001
0
13 RCA CABLE
1
VRC155007-003
0
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Service Guide Model No : SW-G2.1 3000
Chapter 6. Schematic Diagram
Pls refer to The Attachment
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1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
VDD +12V
L IN
R IN
SW IN
SGND
L OUT
R OUT
SW OUT
VCC
12V
C33
4.7u
R2
2.7K
C3 562
R214.7K
R17 27K
C31
1 1
R24
1 K
VFER
C48
1 4
C35
4.7u
C42
221
C63
221
C58
4.7u
R31
2.7K
R32
4.7K
C53
562
R2927K
C56
1 1 C59
4.7u
R34
1 K
C64 1 4
VFER
C46
1 4
C47
1 u
+12V
R36
75k
R37
75k
R39
1 K
C7
1 4
C69
1 4
C8
1 3
C79
1 4
R52
1K
R44
3 k
R57
1 K
VFER
R47
3.3K
R48
1.8K
C68
4.7u
C81
2.2n
C82
1 6uF
R38 1 k
R49
47 R
C67 273
R58
1 K
VFER
C84
1 4
C83
1 u/16V
+12V
C71
1 u
C41
221
R22
3.6k
R25
12K
R35
12K
R33
3.6k
C62
221
VFER
C87
1 u/35V
C88
1 4
R6 4.7k
Z1
12V/ .5W
C86
1 4
C9
1 u/16V
R61
1 K
R62
1 K
C89
1 4
C85
47 u/16V
R1
NC
R11
NC R13
NC
L_IN
R_IN
1
2
3
48
GND VCC
U3A
JRC4558
5
6
7
U3B
JRC4558
1
2
3
48
GND VCC
U4A
JRC4558
5
6
7
U4B
JRC4558
FB146 R
FB136 R
FB116 R
FB126 R
FB8 6 R
FB7 6 R
FB6 6 R
FB1 6 R
FB156 R
FB16
3 R
C38
154
C6
154
MIC_IN
EAR
1
6
7
8
9
1
11
J2
1
6
7
8
9
1
11
J4
EAR
L IN
R IN
SW IN
1
2
J3
DC26V 2.7A
SGND
L OUT
R OUT
VCC
MUTE
AMP
SW OUT
3
2
VR1A
VOL/1 K
4 6
5
VR1B
VOL/1 K
78 VR1C
VR_6
LED1
blue
MIC_out
MIC_LIN
R8
6.8K
MIC_RIN
PGND
PGND
MIC_Rout
MIC_Rout
3
2VR2A
BASS/1 K
MIC_Lout
MIC_Lout
4 6
5
VR2B
BASS/1 K
1
2
3
4
5
6
7
8
9
1
11
12
COM1
12PIN
1
6
J1
JK_IN_D3.5
AUX_IN
R15 1K
HUIYANG EASTERN ASIA ELECTRONICS CO.,LTD
MIC_LIN
MIC_RIN
PGND
1
2
3
4
5
6
COM2
1
2
3
4
5
6
COM3
C2
33P
V R
C3
33P
L
R
R L R1
1K
R6
1K
1
2
3
4
5
6
7
8
9
1
JK1
RCA5
ROUT+
LOUT+
SUB+
SUB-
R23
1K
C43
1 P
R26
1 K
C4
1 2
>3V=MUTE 0V=WORK
Q1
2SA733
D1
1N4148
C78
47 uF/16V
NOTE:
C77(NC)
1 uF/16V
R4
1k
R56
3.3k
R42(NC)
R
C75(NC)
47 p
R51
1k
+12V
D2
1N4148
C76
1 4
R53
1 K
LOUT-
ROUT-
8ohm/4 W
L_IN
R_IN
PVCCL
1
SD
2
PVCCL
3
MUTE
4
LIN
5
RIN
6
BYPASS
7
AGND
8
AGND
9
PVCCR
1
VCLAMP
11
PVCCR
12 PGNDR 13
PGNDR 14
ROUT 15
BSR 16
GAIN1 17
GAIN 18
AVCC 19
AVCC 2
BSL 21
LOUT 22
PGNDL 23
PGNDL 24
U1
IC-TPA3123D2
R4 1 K
VDD
C6
1 2
C1
474
R2
1 K
C17
1 2
C14
474
R9
1 K
C16
1 5
C2
1 4
C22
1 5
L1
L_33UH_12.5TS
L2
L_33UH_12.5TS
C13
1 4
C18
1 4
C11
224
C19
224
+
C15
1 uF/35V
C12
1 4
R7 R
R12 R
R5
1K
6ohm/15W
6ohm/15W
PVCCL
1
SD
2
PVCCL
3
MUTE
4
LIN
5
RIN
6
BYPASS
7
AGND
8
AGND
9
PVCCR
1
VCLAMP
11
PVCCR
12 PGNDR 13
PGNDR 14
ROUT 15
BSR 16
GAIN1 17
GAIN 18
AVCC 19
AVCC 2
BSL 21
LOUT 22
PGNDL 23
PGNDL 24
U2
IC-TPA3123D2
R18 1 K
VDD
C44
1 5
C54
1 4
L3
L_33UH_12.5TS
C39
224
C5
224
C34
224
C52
224
+
C45
1 uF/35V
C37
1 4
R27 R
R28 R
R19 1K
C57
1 5
SD
SD
Q2(NC)
2SC945
MUTE
MUTE
C4
1 4
C26
1 4
R41
1k
FB3
3 R
FB9
3 R
C5
1 5 C7
47 u/35V
C27
1 5
C25
47 u/35V
C1
47 u/25V
C21
47 u/25V
LOUT+
LOUT-
ROUT-
ROUT+
FB1
3 R
FB2
3 R
C9
22 P
C8
182
R3
5.6R
C23
22 P
C24
182
R14
5.6R
L4
L_33UH_12.5TS
C55
22 P
C61
182
R3
5.6R
FB5
3 R
FB4
3 R
C29
22 P
C28
182
R16
5.6R
SUB+
SUB-
C36
1 4
R59
NC
C91
1 5
C92
1 5
C66
1 uF
R67
1K
R681K
R65 75K
C65
1 4
R72
1 K
VFER
C97
1 4
C93
1 uF
C96
221
C98
1 4
C94
1 uF
R69
2.7K
R71
2.7K
R6675K
C74
1 1 C95
1 uF
R73
1 K
C1 21 4
VFER
C99
1 4
C1 1
1 u
+12V
1
2
3
48
GND VCC
U5A
JRC4558
5
6
7
U5B
JRC4558
R7 3.9K
R5
1k
R64
1K
R54
1K
C51
1 P
R63
1 K
C49
1 2
C32
1 uF
C1
1 uF
Q4
8 5
R74
2K
12V
MUTE
SD
R43 1 R
+12V

1 2
A
B
C
D
4321
D
C
B
ATit
ii
e::_ _
.
.
R350R
EAR
1
6
7
8
9
10
11
J4
EAR
LIN
RIN
SW IN
SGND
LOUT
ROUT
VCC
MUTE
SW OUT
3
2
VR1A
VOL/10K
4 6
5
VR1B
VOL/10K
78 VR1C
VR_6
3
2VR2A
BASS/10K
R261K
MIC_LIN
MIC_RIN
PGND
1
2
3
4
5
6
COM2
1
2
3
4
5
6
COM3
C35
33P
VR
C36
33P
L
R
RL
LED1 blue
C47
104
R37
1K
R31 2K

123456
A
B
C
D
6
54321
D
C
B
A
3
4
2
1
D1
KBP406
TVR1
MOV1
F4*8
T3.15AL/250VAC
L1 L2
R1
R2
CX1
C1
T1A
R41B
TT
T1D
R17
D3
C2
U2A
C5
7
6
3
1
5
8
2
4
U1
R19
Q1
R15
R9
R10
R7
R8
C3
C
D2
D
D4
R16
R5 R3
R6 R4
D20
C22
C
R20
C20 C21
L3
R29
R26
R28
R24
C24
TL431
U2B
R13
C6
C4
R14
R21
R25
R27
R22
AC IN
AC IN
V+
V-
C7
D5

Service Guide Model No : SW-G2.1 3000
Chapter 7. Important Notes
7.1 Packing Requirement for Sending the PCB Assembly by Post
PCB assembly is a kind of sophisticated electronic circuit board. Well
packing will be required when sending them by post.
*Some sophisticated IC components are mounted on the PCB assembly,
hence it is necessary to pack each PCB assembly with a separate static
protecting bag, in order to avoid static electricity.
*Reliable external packing is also very important when sending PCB
assembly by post, in that it would avoid unnecessarily lost or damage.
7.2 Short of Spare Parts while Repairing a Speaker System
If you are short of spare parts when you have some speaker systems waiting
to be repaired, it would be recommended to take the necessary parts form
one speaker system, so that you may have the as many speaker systems.
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